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Finding the Fourth Proportional to 34,178.80, 51,277.80 and 16,649.20

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Solution

The fourth proportional to 34,178.80, 51,277.80 and 16,649.20 is: 24,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,178.80 : 51,277.80 = 16,649.20 : x
  2. Step 2: Convert to fraction form
    34,178.80/51,277.80 = 16,649.20/x
  3. Step 3: Cross multiply
    34,178.80x = 51,277.80 × 16,649.20
  4. Step 4: Simplify right side
    34,178.80x = 853,734,347.76
  5. Step 5: Solve for x
    x = 853,734,347.76/34,178.80
  6. Step 6: Final answer
    x = 24,978.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.